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Finding the Fourth Proportional to 36.43, 54.38 and 34

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Solution

The fourth proportional to 36.43, 54.38 and 34 is: 50.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    36.43 : 54.38 = 34 : x
  2. Step 2: Convert to fraction form
    36.43/54.38 = 34/x
  3. Step 3: Cross multiply
    36.43x = 54.38 × 34
  4. Step 4: Simplify right side
    36.43x = 1,848.92
  5. Step 5: Solve for x
    x = 1,848.92/36.43
  6. Step 6: Final answer
    x = 50.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.